Mini-itx vs micro-atx

Hardware Peripherals

What is the difference between mini-itx and micro-atx. I know Mini-ITX is slightly smaller than microATX. What is the exact size of this motherboards. I am wondering how much of an disadvantage it is to get a micro-atx, i.e. did it really conserve any space?

Mini-ITX is a compact motherboard configuration designed to support relatively low-cost computers in small spaces such as in automobiles, set-top box es, and network devices. The dimensions of the micro board itself is around 18cm x 20cm and the mini atx is slightly bigger, usually around 22x 20cm.The Mini-ITX can also be used in making thin client computers.

Mini-ITX is small. It's about as long as the I/O panel of a regular ATX mobo. Micro ATX is much bigger then Mini-ITX. The Mini-ITX was developed by VIA Technologies.Most modern ATX motherboards have five or more PCI or PCI-Express expansion slots, while microATX boards typically have only four.